CN219284494U

CN219284494U - Large-area-array refrigeration long-wave thermal infrared imager

Info

Publication number: CN219284494U
Application number: CN202223209144.7U
Authority: CN
Inventors: 陈红升
Original assignee: Nanjing Haihui Equipment Technology Co ltd
Current assignee: Nanjing Haihui Equipment Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-06-30
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a large area array refrigeration long wave thermal infrared imager, which particularly relates to the field of optics, and comprises a host and a large eyepiece, wherein the host and the large eyepiece are connected through a wire, the host comprises a host shell, an infrared imaging optical system, a long wave detector assembly, a servo control assembly and a movement imaging processing assembly, the large eyepiece comprises a large eyepiece shell and a display assembly, and the infrared imaging optical system, the long wave detector assembly, the servo control assembly and the movement imaging processing assembly are all arranged in the host shell. The utility model has the characteristics of full localization of core devices, high resolution, large eyepiece observation and use, and the like. The large-area array refrigerating long-wave thermal imager has the characteristics of small volume, long acting distance, good imaging quality, high reliability and the like, can meet the night vision channel of armored vehicles and weapon platforms, and can finish the operations such as remote reconnaissance, aiming and the like under the conditions of day and night and low visibility.

Description

Large-area-array refrigeration long-wave thermal infrared imager

Technical Field

The utility model relates to the technical field of optics, in particular to a large-area array refrigeration long-wave thermal infrared imager.

Background

The large area array refrigerating type long wave area array thermal imager adopts a domestic high resolution refrigerating type long wave area array infrared detector, is matched with an infrared optical system and an integrated structure, and is a large area array whole thermal infrared imager for long distance use. The device can work around the clock, especially in the environment with low visibility such as night, fog, etc., and in the condition of day and night and other bad weather, the targets can be detected and identified, and the observation and aiming of various targets can be realized. The thermal imaging system in the prior art is mostly realized by adopting a scanning detector, has a complex structure and is a certain distance from the development of the foreign high-resolution long-wave area array thermal imaging system.

Disclosure of Invention

The utility model aims to provide a large-area array refrigeration long-wave thermal infrared imager so as to solve the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a big area array refrigeration long wave thermal infrared imager, includes host computer and big eyepiece, host computer and big eyepiece pass through the wire and connect, the host computer is including host computer casing, infrared imaging optical system, long wave detector subassembly, servo control subassembly and core formation of image processing subassembly, big eyepiece is including big eyepiece casing and display module, infrared imaging optical system, long wave detector subassembly, servo control subassembly and core formation of image processing subassembly all set up in the inside of host computer casing.

In a preferred embodiment, a system interface is arranged on the outer side wall of the host shell, the system interface comprises a communication interface and a power interface, and an interface component and a switching component matched with the system interface are arranged inside the host shell.

In a preferred embodiment, the infrared imaging optical system includes an objective lens assembly, a field lens assembly, a mirror assembly, and a focusing lens assembly.

In a preferred embodiment, the long wave detector assembly comprises a mounting part fixedly mounted in the main machine shell and an infrared refrigeration detector fixedly arranged on the mounting part, and the infrared imaging optical system and the long wave detector assembly form a U-shaped closed light path.

In a preferred embodiment, the servo control assembly is electrically connected to both the cartridge imaging processing assembly and the infrared imaging optical system, and the servo control assembly controls the optical focusing and the changing of the size field of view using a motor and cam structure.

In a preferred embodiment, the cartridge imaging processing assembly includes a power control board, a signal processing board, and a drive board.

In a preferred embodiment, the display assembly includes an optical display system disposed within the large eyepiece housing and a display screen disposed at the outer end of the large eyepiece housing.

In a preferred embodiment, the inside of the host casing is provided with a heat dissipation mechanism, the heat dissipation mechanism comprises a heat dissipation fan arranged inside the host casing, the long wave detector assembly, the servo control assembly and the movement imaging processing assembly are all installed on a heat conducting plate, and one end of the heat conducting plate extends into the heat dissipation air duct.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model has the characteristics of full localization of core devices, high resolution, large eyepiece observation and use and the like, and passes static index test, environmental test, reliability test and the like. The large-area array refrigerating long-wave thermal imager has the characteristics of small volume, long acting distance, good imaging quality, high reliability and the like, can meet the night vision channel of armored vehicles and weapon platforms, and can finish the operations of remote reconnaissance, aiming and the like under the conditions of day and night and low visibility.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a host structure according to the present utility model;

FIG. 3 is a schematic diagram of the internal structure of the host according to the present utility model;

FIG. 4 is a schematic view of the optical path principle of the infrared imaging optical system of the present utility model;

in the figure: 1. a host; 2. a large eyepiece; 3. a wire; 4. a main body case; 5. an infrared imaging optical system; 6. a long wave detector assembly; 7. a servo control assembly; 8. a movement imaging processing assembly; 9. a large eyepiece housing; 10. a display assembly; 11. an objective lens assembly; 12. a field lens assembly; 13. a mirror assembly; 14. a focusing mirror assembly; 15. a heat radiation fan.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the utility model provides a large area array refrigeration long wave thermal infrared imager, which comprises a host 1 and a large eyepiece 2, wherein the host 1 and the large eyepiece 2 are connected through a lead 3, the host 1 comprises a host shell 4, an infrared imaging optical system 5, a long wave detector component 6, a servo control component 7 and a movement imaging processing component 8, the large eyepiece 2 comprises a large eyepiece shell 9 and a display component 10, and the infrared imaging optical system 5, the long wave detector component 6, the servo control component 7 and the movement imaging processing component 8 are all arranged in the host shell 4.

In a preferred embodiment, a system interface is arranged on the outer side wall of the host shell 4, the system interface comprises a communication interface and a power interface, an interface component and a switching component matched with the system interface are arranged inside the host shell 4, and the system interface is used for connecting the large area array refrigeration long wave infrared thermal imager with a large eyepiece.

In a preferred embodiment, the infrared imaging optical system 5 includes an objective lens assembly 11, a field lens assembly 12, a reflecting mirror assembly 13, and a focusing lens assembly 14, wherein, in particular use, the objective lens assembly 11 is used to focus the target infrared radiation emitted by the target onto the field lens assembly 12; the field lens assembly 12 is used for switching the field size of the target infrared radiation sent by the objective lens assembly 11; the reflecting mirror assembly 13 is used for reflecting the target infrared radiation after the field of view is switched to the focusing mirror assembly 14; the focusing lens assembly 14 is used for focusing the infrared radiation of the target after the field lens assembly 12 switches the field of view.

In a preferred embodiment, the long wave detector assembly 6 includes a mounting part fixedly mounted in the main body housing 4 and an infrared refrigeration detector fixedly disposed on the mounting part, the infrared imaging optical system 5 and the long wave detector assembly 6 form a U-shaped closed optical path, and the infrared refrigeration detector adjusts the F-number state according to the field state by the infrared thermal imager infrared optical system so as to perform infrared imaging.

In a preferred embodiment, the servo control assembly 7 is electrically connected with the movement imaging processing assembly 8 and the infrared imaging optical system 5, and the servo control assembly 7 adopts a motor and cam structure to control optical focusing and conversion of a large visual field and a small visual field, the movement imaging processing assembly 8 comprises a power supply control board, a signal processing board and a driving board, and when the movement imaging processing assembly is particularly used, the power supply control board comprises power supply and electrical interfaces of all parts, and the driving board completes detector configuration and signal preprocessing; the information processing board comprises an analog signal acquisition, time sequence generation and image processing, a FLASH storage circuit, an SRAM storage circuit, a video D/A circuit and a communication interface, wherein the communication interface is connected with the power supply control board, the analog signal acquisition and time sequence generation are connected with the driving board, the servo control board is connected with the motor part of the conversion assembly and the zooming assembly, and the signal processing board is used for carrying out information processing on the large-area array refrigeration long-wave thermal infrared imager through the methods of non-uniform correction, histogram processing and video display.

In a preferred embodiment, the display assembly 10 includes an optical display system disposed inside the large eyepiece housing 9 and a display screen disposed at an outer end of the large eyepiece housing 9, and the display assembly 10 is configured to perform display screen image display on the received image signal.

In a preferred embodiment, the inside of host computer casing 4 is provided with heat dissipation mechanism, heat dissipation mechanism is including setting up in the inside radiator fan 15 of host computer casing 4, long wave detector subassembly 6, servo control subassembly 7 and core formation of image processing module 8 are all installed on the heat-conducting plate, the one end of heat-conducting plate extends to in the heat dissipation wind channel, and radiator fan 15 makes things convenient for the heat dissipation of host computer 1, and the heat that long wave detector subassembly 6, servo control subassembly 7 and core formation of image processing module 8 produced can be through the heat-conducting plate transmission to in the heat dissipation wind channel, utilizes radiator fan 15 to blow out the heat, adds heat conduction silica gel, heat conduction mud etc. in the middle and increases radiating effect.

The working principle of the utility model is as follows: the observation thermal imager is a vehicle-mounted night vision reconnaissance system, infrared radiation of a target and a scene enters a refrigerating type infrared detector focal plane after passing through an infrared imaging optical system 5, an electric signal of image information is generated after photoelectric conversion is completed by the infrared detector, the electric signal enters an image signal processing circuit after AD conversion, a final output image is formed after infrared image is subjected to a series of image processing, and the final output image is presented to an observer through a large eyepiece 2. The thermal imager can normally image at night, in heavy fog, in dense smoke and other severe environments, and is favorable for identifying topography and suspicious targets. The device has the advantages of high resolution, small volume, long acting distance, good imaging effect, high reliability, certain capability of penetrating smoke dust and haze, and the like, has extremely high stability of an optical axis after the switching of a mounting base surface and a view field, and is suitable for a night vision channel of an armored vehicle or a weapon platform.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a big area array refrigeration long wave thermal infrared imager which characterized in that: including host computer (1) and big eyepiece (2), host computer (1) and big eyepiece (2) are connected through wire (3), host computer (1) is including host computer casing (4), infrared imaging optical system (5), long wave detector subassembly (6), servo control subassembly (7) and core formation of image processing module (8), big eyepiece (2) are including big eyepiece casing (9) and display module (10), infrared imaging optical system (5), long wave detector subassembly (6), servo control subassembly (7) and core formation of image processing module (8) all set up in the inside of host computer casing (4).

2. The large area array refrigeration long wave thermal infrared imager as set forth in claim 1, wherein: the system interface is arranged on the outer side wall of the host shell (4), the system interface comprises a communication interface and a power interface, and an interface component and a switching component matched with the system interface are arranged inside the host shell (4).

3. The large area array refrigeration long wave thermal infrared imager as set forth in claim 1, wherein: the infrared imaging optical system (5) comprises an objective lens assembly (11), a field lens assembly (12), a reflecting mirror assembly (13) and a focusing lens assembly (14).

4. A large area array refrigeration long wave thermal infrared imager as defined in claim 3, wherein: the long wave detector assembly (6) comprises an installation piece fixedly installed in the main machine shell (4) and an infrared refrigeration detector fixedly arranged on the installation piece, and the infrared imaging optical system (5) and the long wave detector assembly (6) form a U-shaped closed light path.

5. A large area array refrigeration long wave thermal infrared imager as defined in claim 3, wherein: the servo control assembly (7) is electrically connected with the movement imaging processing assembly (8) and the infrared imaging optical system (5), and the servo control assembly (7) adopts a motor and cam structure to control optical focusing and the transformation of the size view field.

6. The large area array refrigeration long wave thermal infrared imager as set forth in claim 1, wherein: the movement imaging processing component (8) comprises a power supply control board, a signal processing board and a driving board.

7. The large area array refrigeration long wave thermal infrared imager as set forth in claim 1, wherein: the display assembly (10) comprises an optical display system arranged in the large eyepiece shell (9) and a display screen arranged at the outer end of the large eyepiece shell (9).

8. The large area array refrigeration long wave thermal infrared imager as set forth in claim 1, wherein: the inside of host computer casing (4) is provided with heat dissipation mechanism, heat dissipation mechanism is including setting up in the inside radiator fan (15) of host computer casing (4), long wave detector subassembly (6), servo control subassembly (7) and core formation of image processing module (8) are all installed on the heat-conducting plate, the one end of heat-conducting plate extends to in the heat dissipation wind channel.